Verify label stack in TE tunnels
July 13, 2010 at 12:07 am | Posted in Blogroll | 1 CommentTOPOLOGY
R1 —– R2 —– R3 —— R4
CONFIGURATION
R1#
mpls traff tunnel
int lo0
ip add 1.1.1.1 255.255.255.255
int fa0/0
ip add 12.0.0.1 255.255.255.0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
router ospf 1
mpls traffic-eng router-id loo0
mpls traffic-eng area 0
net 1.1.1.1 0.0.0.0 area 0
net 12.0.0.1 0.0.0.0 area 0
int tunnel14
ip unnumbered lo0
tunnel mode mpls traffic-eng
tunnel destination 4.4.4.4
tunnel mpls traffic-eng bandwidth 50000
tunnel mpls traffic-eng path-option 10 dynamic
interface Tunnel104
ip unnumbered Loopback0
tunnel destination 4.4.4.4
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng priority 7 7
tunnel mpls traffic-eng bandwidth 10000
tunnel mpls traffic-eng path-option 10 dynamic
ip route 40.40.40.0 255.255.255.0 Tunnel104
ip route 44.44.44.0 255.255.255.0 Tunnel14
R2#
mpls traff tunnel
int fa0/0
ip address 12.0.0.2 255.255.255.0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
int fa0/1
ip address 23.0.0.2 255.255.255.0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
int lo0
ip add 2.2.2.2 255.255.255.255
router ospf 1
mpls traffic-eng area 0
mpls traffic-eng router-id loo0
net 0.0.0.0 255.255.255.255 area 0
R3#
mpls traff tunnel
int lo0
ip add 3.3.3.3 255.255.255.255
router ospf 1
mpls traffic-eng area 0
mpls traffic-eng router-id loo0
net 0.0.0.0 255.255.255.255 area 0
int fa0/0
ip address 34.0.0.3 255.255.255.0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
int fa0/1
ip add 23.0.0.3 255.255.255.0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
R4#
mpls traff tunnel
int lo0
ip add 4.4.4.4 255.255.255.255
router ospf 1
mpls traffic-eng area 0
mpls traffic-eng router-id loo0
net 0.0.0.0 255.255.255.255 area 0
int fa0/0
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
int fa0/1
mpls ip
mpls traffic-eng tunnels
ip rsvp bandwidth 100000 100000
int tunnel41
ip unnumbered lo0
tunnel mode mpls traffic-eng
tunnel destination 1.1.1.1
tunnel mpls traffic-eng bandwidth 50000
tunnel mpls traffic-eng path-option 10 dynamic
!
interface Loopback40
ip address 40.40.40.40 255.255.255.0
!
interface Loopback44
ip address 44.44.44.44 255.255.255.0
TE VERIFICATION
R1#show mpls traffic-eng tunnels
Name: R1_t14 (Tunnel14) Destination: 4.4.4.4
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 3)
Config Parameters:
Bandwidth: 50000 kbps (Global) Priority: 7 7 Affinity: 0×0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 50000 bw-based
auto-bw: disabled
Active Path Option Parameters:
State: dynamic path option 10 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : FastEthernet0/0, 20
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 14, Tun_Instance 28
RSVP Path Info:
My Address: 12.0.0.1
Explicit Route: 12.0.0.2 23.0.0.2 23.0.0.3 34.0.0.3
34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
History:
Tunnel:
Time since created: 27 minutes, 32 seconds
Time since path change: 22 minutes, 2 seconds
Number of LSP IDs (Tun_Instances) used: 28
Current LSP:
Uptime: 22 minutes, 2 seconds
Prior LSP:
ID: path option 10 [25]
Removal Trigger: path error
Name: R1_t104 (Tunnel104) Destination: 4.4.4.4
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 10, type dynamic (Basis for Setup, path weight 3)
Config Parameters:
Bandwidth: 10000 kbps (Global) Priority: 7 7 Affinity: 0×0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 10000 bw-based
auto-bw: disabled
Active Path Option Parameters:
State: dynamic path option 10 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : FastEthernet0/0, 23
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 104, Tun_Instance 1
RSVP Path Info:
My Address: 12.0.0.1
Explicit Route: 12.0.0.2 23.0.0.2 23.0.0.3 34.0.0.3
34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
History:
Tunnel:
Time since created: 11 minutes, 2 seconds
Time since path change: 11 minutes
Number of LSP IDs (Tun_Instances) used: 1
Current LSP:
Uptime: 11 minutes
LSP Tunnel R4_t41 is signalled, connection is up
InLabel : FastEthernet0/0, implicit-null
OutLabel : -
RSVP Signalling Info:
Src 4.4.4.4, Dst 1.1.1.1, Tun_Id 41, Tun_Instance 14
RSVP Path Info:
My Address: 1.1.1.1
Explicit Route: NONE
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
CHECK LABEL STACK DETAILS
R1#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
16 Pop Label 2.2.2.2/32 0 Fa0/0 12.0.0.2
17 Pop Label 23.0.0.0/24 0 Fa0/0 12.0.0.2
18 17 3.3.3.3/32 0 Fa0/0 12.0.0.2
19 18 34.0.0.0/24 0 Fa0/0 12.0.0.2
20 22 4.4.4.4/32 0 Fa0/0 12.0.0.2
22 Pop Label [T] 44.44.44.0/24 0 Tu14 point2point
23 Pop Label [T] 40.40.40.0/24 0 Tu104 point2point
[T] Forwarding through a LSP tunnel.
View additional labelling info with the ‘detail’ option
R1#show mpls forwarding-table 44.44.44.0 detail
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
22 Pop Label 44.44.44.0/24 0 Tu14 point2point
MAC/Encaps=14/18, MRU=1500, Label Stack{20}, via Fa0/0
CA0105800008CA00058000088847 00014000
No output feature configured
R1#show mpls forwarding-table 40.40.40.0 detail
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
23 Pop Label 40.40.40.0/24 0 Tu104 point2point
MAC/Encaps=14/18, MRU=1500, Label Stack{23}, via Fa0/0
CA0105800008CA00058000088847 00017000
No output feature configured
R2#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
16 Pop Label 1.1.1.1/32 3034 Fa0/0 12.0.0.1
17 Pop Label 3.3.3.3/32 0 Fa0/1 23.0.0.3
18 Pop Label 34.0.0.0/24 0 Fa0/1 23.0.0.3
20 19 1.1.1.1 14 [28] 3104 Fa0/1 23.0.0.3
21 Pop Label 4.4.4.4 41 [14] 0 Fa0/0 12.0.0.1
22 21 4.4.4.4/32 0 Fa0/1 23.0.0.3
23 23 1.1.1.1 104 [1] 3694 Fa0/1 23.0.0.3
R2#show mpls traffic-eng tunnels
LSP Tunnel R1_t14 is signalled, connection is up
InLabel : FastEthernet0/0, 20
OutLabel : FastEthernet0/1, 19
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 14, Tun_Instance 28
RSVP Path Info:
My Address: 23.0.0.2
Explicit Route: 23.0.0.3 34.0.0.3 34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
LSP Tunnel R1_t104 is signalled, connection is up
InLabel : FastEthernet0/0, 23
OutLabel : FastEthernet0/1, 23
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 104, Tun_Instance 1
RSVP Path Info:
My Address: 23.0.0.2
Explicit Route: 23.0.0.3 34.0.0.3 34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
R3#show mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
16 Pop Label 2.2.2.2/32 0 Fa0/1 23.0.0.2
17 16 1.1.1.1/32 3118 Fa0/1 23.0.0.2
18 Pop Label 12.0.0.0/24 570 Fa0/1 23.0.0.2
19 Pop Label 1.1.1.1 14 [28] 3288 Fa0/0 34.0.0.4
21 Pop Label 4.4.4.4/32 0 Fa0/0 34.0.0.4
22 21 4.4.4.4 41 [14] 0 Fa0/1 23.0.0.2
23 Pop Label 1.1.1.1 104 [1] 3858 Fa0/0 34.0.0.4
R3#show mpls traffic-eng tunnels
LSP Tunnel R1_t14 is signalled, connection is up
InLabel : FastEthernet0/1, 19
OutLabel : FastEthernet0/0, implicit-null
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 14, Tun_Instance 28
RSVP Path Info:
My Address: 34.0.0.3
Explicit Route: 34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=50000 kbits, burst=1000 bytes, peak rate=50000 kbits
LSP Tunnel R1_t104 is signalled, connection is up
InLabel : FastEthernet0/1, 23
OutLabel : FastEthernet0/0, implicit-null
RSVP Signalling Info:
Src 1.1.1.1, Dst 4.4.4.4, Tun_Id 104, Tun_Instance 1
RSVP Path Info:
My Address: 34.0.0.3
Explicit Route: 34.0.0.4 4.4.4.4
Record Route: NONE
Tspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=10000 kbits, burst=1000 bytes, peak rate=10000 kbits
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